Help with my build!

[Flay-]

So, i'm in the market for a new computer. Here's the build that a friend suggested that I get:

Wish List:
Qty. Product Description Savings Total Price
1 CORSAIR Vengeance 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model CMZ8GX3M2A1600C9
Item #: N82E16820233144
Return Policy: Memory Standard Return Policy -$4.00 Instant
$53.99
$49.99
1 EVGA 02G-P4-2678-KR GeForce GTX 670 FTW 2GB 256-bit GDDR5 PCI Express 3.0 x16 HDCP Ready SLI Support Video Card
Item #: N82E16814130787
Return Policy: VGA Standard Return Policy $407.99
1 Corsair Vengeance Series C70 Military Green Steel ATX Mid Tower Computer Case
Item #: N82E16811139015
Return Policy: Standard Return Policy $10.00 Mail-in Rebate Card
$139.99
1 ASUS P8Z77-V LK LGA 1155 Intel Z77 HDMI SATA 6Gb/s USB 3.0 ATX Intel Motherboard with UEFI BIOS
Item #: N82E16813131837
Return Policy: Standard Return Policy $20.00 Mail-in Rebate Card
$149.99
1 Intel Core i5-3470 Ivy Bridge 3.2GHz (3.6GHz Turbo Boost) LGA 1155 77W Quad-Core Desktop Processor Intel HD Graphics 2500 BX80637i53470
Item #: N82E16819115234
Return Policy: CPU Replacement Only Return Policy $199.99
1 CORSAIR Enthusiast Series TX650M 650W ATX12V v2.31 / EPS12V v2.92 80 PLUS BRONZE Certified Semi Modular High Performance Power Supply
Item #: N82E16817139031
Return Policy: Standard Return Policy -$10.00 Instant
$10.00 Mail-in Rebate Card
$119.99
$109.99
1 Western Digital Caviar Blue WD10EALX 1TB 7200 RPM SATA 6.0Gb/s 3.5" Internal Hard Drive -Bare Drive
Item #: N82E16822136767
Return Policy: Standard Return Policy -$20.00 Instant
$109.99
$89.99

I really only play WoW, League and HoN. My question is, is this too much of a computer? Is it enough of a computer to run those games? Could I go to any computer hardware store and have them build it? Thanks

[Nips]

Ram: Fine, but you might want to go with low profile ram instead
Gpu: Way too strong for your games. Most cards between 150-250$ would be sufficient. I personally like the Radeon HD7850 (~250$)
Case: I do not like that case. Also, reviews are not really great. Maybe look into other corsair cases or the case catalog thread on mmo-c for ideas.
Mobo: Should be fine. I don't know anything about asus boards though.
Cpu: Fine, but you might want to go with the i5 3570k. I is a little bit more expensive but allows for easy overclocking. (Wow relies heavily on the cpu, so it'll be worth it.)
Psu: Just fine.
HDD: Just fine. Maybe think about an ssd - highly optional though.

Also, next time try to format your post to make it a bit easier to read.

edit:

In case you choose the i5 3570k, add an aftermarket cooler. CM Hyper 212 or Corsair A70 are decent and competetively priced.

[Flay-]

Sorry, I probably should have thought about making a cleaner post. But I appreciate your input and will give this feedback to my friend and see what he thinks! Thanks!

[n0cturnal]

I would suggest you switch the HDD for a Caviar Black unless you are planning on getting a SSD.

[Flay-]

What's the difference between the black and the blue?

[n0cturnal]

What's the difference between the black and the blue?

The black is faster. Black is performance, Blue is mainstream, Green is eco.